In mixing of immiscible liquids, two rivaling processes of break-up and coalescence of drops occur simultaneously. The intensity of both processes and, therefore, the results of emulsification are determined by local mixing intensity (shear rate, specific power, etc.) which, in turn, depends on characteristics of tank and impeller, and on the physical properties of the initial fluids.
VisiMix simulates the formation of the emulsion, determines if complete emulsification is achieved, calculates mean drop size, specific mass transfer area, mixing time, and other process parameters important for emulsification, liquid extraction, multiphase chemical reactions etc.
A liquid – liquid emulsification process is carried out in a cylindrical, baffled tank with an elliptical bottom. The parameters of the mixing system are as follows:
Baffle (flat type, attached at a distance from the wall):
Impeller (DISK TURBINE):
The media is a pure oil – water system without significant admixtures with the interfacial surface tension = 0.03 N/m;
Continuous phase (water) properties:
Disperse phase (pure oil) properties: